Zubeidat Tsarnaev has said she believes the bombing that killed three people and injured more than 280, was staged.

"That's what I want to know, because everybody's talking about it -- that this is a show, that's what I want to know. That's what I want to understand," Zubeidat Tsarnaev told CNN.

When asked if she has seen images of the actual bombings, said said she has not.

"There was no blood, she said. It was paint," she said when asked about the news photos.

She did show some emotion when she spoke about the three people who were killed and more than 280 others injured in the attacks on April 15.

"I really feel sorry for all of them. Really feel sorry for all of them," she said.

Multiple sources told NewsCenter 5 that the mother, Zubeidat Tsarnaev, will be arrested on an outstanding warrant tied to a larceny charge.

"We'll certainly be involved in the conversations. I don't have any of the details on it yet. We want to make sure we help in any way we can," Boston Police Commissioner Ed Davis said.

Sources told ABC News that she decided against returning with her husband, who was expected in the U.S. in the coming days.

"I am going there to see my son and bury my older one," he said. "I have no bad thoughts, I'm not planning any bombings, I don't want to do anything, I'm not offended by anyone. I want to know the truth, what happened. I want to work it out."

New details surfaced Wednesday about the bombs used at the marathon. The Associated Press quotes multiple U.S. officials who say the devices appear to have been triggered by remote control.

Court documents say 19-year-old Dzhokhar Tsarnaev is seen on a cellphone moments before the explosion.

But there are still plenty of unanswered questions about how his older brother, Tamerlan, planned the attack.

"We had a young person in Russia and Chechnya who blew people up in Boston. He didn't stay where he went and he learned something and he came back with a willingness to kill people," Sen. John Kerry said.

Photographs taken during the Watertown gunfight with police only show the older brother firing a gun.

Sources confirmed that a single 9 mm handgun was recovered in Watertown.

The Associated Press also reports Dzhokhar Tsarnaev was unarmed hiding in the boat, and not shooting back as police originally said.